CN201382840Y - Pressure detecting device - Google Patents
Pressure detecting device Download PDFInfo
- Publication number
- CN201382840Y CN201382840Y CN200920071374U CN200920071374U CN201382840Y CN 201382840 Y CN201382840 Y CN 201382840Y CN 200920071374 U CN200920071374 U CN 200920071374U CN 200920071374 U CN200920071374 U CN 200920071374U CN 201382840 Y CN201382840 Y CN 201382840Y
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- CN
- China
- Prior art keywords
- pressure
- piston
- microswitch
- detecting device
- plug screw
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- Expired - Fee Related
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- Measuring Fluid Pressure (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The utility model provides a pressure detecting device which can automatically switch on a power supply to carry out testing when in pressure input and can automatically switch off the power supply when in no pressure input. The pressure detecting device is provided with an air inlet, two cavity bodies are arranged in a shell body, a pressure sensor is arranged in the cavity body at one side, and a piston device is arranged in the cavity body at the other side; the small-diameter end of a piston is right aligned with a button of a micro switch; when in no pressure input, a return spring separates the piston from the micro switch, so as to keep the power supply switched off; when pressure is input from the air inlet, the piston is pushed, the small-diameter end of the piston is jacked on the button of the micro switch, the switch is switched on, and the pressure sensor which is powered by the power supply outputs pressure signals; when the pressure is zero, the return spring separates the piston from the micro switch again, the switch is switched off, and the pressure sensor is stopped being powered. The pressure detecting device can achieve the purposes of saving power supply and prolonging service time.
Description
Affiliated technical field
The utility model relates to a kind of pressure-detecting device that air respiratorresuscitator gas cylinder internal pressure changes that detects, especially open bottle valve have pressure when input automatically energized test, close the pressure-detecting device that bottle valve can auto power off when not having the pressure input.
Background technology
At present, known pressure-detecting device structure is made up of housing, pressure transducer, power supply, hand switch and electric wire.Operating personnel turn on the power switch during test pressure, energized, and pressure transducer output current or voltage signal, powered-down switch when not using, otherwise power supply is connected electric consumption always.But normally volume is little for the power supply that air respiratorresuscitator uses, lightweight dry cell, finite capacity, untimely powered-down or wrong turning on the power switch when not using will consume limited electric weight, cause non-transformer or electric weight deficiency when reusing, air respiratorresuscitator can't be used.General pressure-detecting device can not be when opening bottle valve the pressure input arranged automatically energized test, closing bottle valve can auto power off when not having the pressure input, reaches conserver power source, the purpose that extends working time.
Summary of the invention
Can not pressure when input energized automatically be arranged opening bottle valve in order to overcome existing pressure-detecting device, close bottle valve and do not have the deficiency that pressure when input can auto power off, the utility model provides a kind of pressure-detecting device, this pressure-detecting device can have pressure automatic opening power of when input, pressure transducer is started working, output signal, for voltage supply power shows and the pressure warning unit use, auto power off when no pressure input or pressure are zero, reach conserve battery power, the purpose that extends working time.
The technical scheme that its technical matters that solves the utility model adopts is: an air intake opening is arranged on the pressure-detecting device housing, two cavitys are arranged in the housing, an end of two cavitys communicates and is communicated with air intake opening.In the one side cavity, hold-down ring is by screw thread compaction pressure sensor, and the pressure transducer compression face is communicated with air intake opening, uses seal with O ring between pressure transducer and the housing.One plug screw is arranged in the opposite side cavity, plug screw adopts with housing and is threaded, and use seal with O ring, a piston is arranged in the plug screw, the piston bigger diameter end communicates with air intake opening, adopt seal with O ring between piston bigger diameter end and the plug screw, a back-moving spring is arranged between piston and the plug screw, one microswitch is arranged outside the aperture at plug screw center, microswitch often leaves, and the piston miner diameter end passes the aperture at plug screw center, just in time aims at the button of microswitch, when not having the pressure input, back-moving spring separates piston and microswitch, makes power supply keep disconnecting, and microswitch is installed on the circuit board, there is a spring to be pressed on the circuit board, microswitch and sensor by cover plate, power supply is cascaded.When from the air intake opening input pressure, pressure acts on the piston bigger diameter end and promotes the Piston Compression spring, the piston miner diameter end withstands on the microswitch push-button, switch connection, power control circuit is powered to pressure transducer, pressure transducer output current or voltage signal, when pressure is zero, back-moving spring separates piston miner diameter end and microswitch again, and switch disconnects, and stops to power to pressure transducer.The pressure relief vent that has a rubber plug to block on the cover plate of housing, when in pressure-detecting device pressure leakage being arranged, internal pressure raises rubber plug is ejected, and plays the release effect.Cable one end is connected with microswitch with pressure transducer, and the other end passes cover plate and shows and be connected with warning circuit with power control circuit, pressure.
The beneficial effects of the utility model are, can be when the pressure input be arranged automatically energized test, the energy auto power off reaches conserver power source, the purpose that extends working time during no pressure input.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is an application synoptic diagram of the present utility model.
Fig. 2 is the longitudinal profile structural map of the embodiment of pressure-detecting device.
A. pressure-detecting device among Fig. 1, B. pressure shows and warning circuit, the C. power control circuit.
Embodiment
Pressure-detecting device in Fig. 1 (A) is connected with power control circuit (C) by power lead, and the signal output part of pressure-detecting device (A) shows with pressure and is connected with warning circuit (B).
In embodiment illustrated in fig. 2, an air intake opening D is arranged on pressure-detecting device housing (1), two cavitys are arranged in the housing, an end of two cavitys communicates and is communicated with air intake opening D.In the one side cavity, hold-down ring (4) is by screw thread compaction pressure sensor (3), and pressure transducer (3) compression face is communicated with air intake opening D, seals with O shape circle (2) between pressure transducer (3) and the housing (1).One plug screw (11) is arranged in the opposite side cavity, plug screw (11) adopts with housing (1) and is threaded, and with O shape circle (10) sealing, a piston (13) is arranged in the plug screw (11), piston (13) bigger diameter end communicates with air intake opening D, adopt O shape circle (14) sealing between piston (13) bigger diameter end and the plug screw (11), between piston (13) and the plug screw (11) back-moving spring (12) is arranged, one microswitch (9) is arranged outside the aperture at plug screw (11) center, microswitch (9) often leaves, piston (13) miner diameter end passes the aperture at plug screw (11) center, just in time aim at the button of microswitch (9), when not having the pressure input, back-moving spring (12) separates piston (13) and microswitch (9), makes power supply keep disconnecting, and microswitch (9) is installed on the circuit board, have a spring (8) to be pressed on the circuit board by cover plate (5), microswitch (9) pressure transducer (3) is cascaded with power control circuit.When from air intake opening A input pressure, pressure acts on piston (13) bigger diameter end and promotes piston (13) compression reseting spring (12), piston (13) miner diameter end withstands on microswitch (9) button, switch connection, power control circuit is to pressure transducer (3) power supply, pressure transducer (3) output current or voltage signal, when pressure is zero, back-moving spring (12) separates piston (13) miner diameter end and microswitch (9) again, and switch disconnects, and stops to power to pressure transducer (3).The pressure relief vent that has a rubber plug (7) to block on the cover plate (5) of housing (1), when in pressure-detecting device pressure leakage being arranged, internal pressure raises rubber plug (7) is ejected, and plays the release effect.Cable (6) one ends are connected with microswitch with pressure transducer (3), and the other end passes cover plate (5) and shows and be connected with warning circuit (B) with power control circuit (C), pressure.
Claims (3)
1. pressure-detecting device, an air intake opening is arranged on housing, hold-down ring is by screw thread compaction pressure sensor in the one side cavity, the pressure transducer compression face is communicated with air intake opening, use seal with O ring between pressure transducer and the housing, it is characterized in that: two cavitys are arranged in the housing, one end of two cavitys communicates and is communicated with pressure introduction port, in the one side cavity plug screw is arranged, plug screw adopts with housing and is threaded, and uses seal with O ring, and a piston is arranged in the plug screw, the piston bigger diameter end communicates with air intake opening, adopt seal with O ring between piston bigger diameter end and the plug screw, a back-moving spring is arranged between piston and the plug screw, there is an aperture at the plug screw center, aperture has a microswitch outward, the piston miner diameter end passes the button of the aperture aligning microswitch at plug screw center, and microswitch is installed on the circuit board, has a spring to be pressed on the circuit board by cover plate, cable one end is connected with microswitch with pressure transducer, and the other end passes cover plate and power control circuit, pressure shows and is connected with warning circuit.
2. pressure-detecting device according to claim 1 is characterized in that: microswitch is a normal open switch, and microswitch and power control circuit, pressure transducer are cascaded.
3. pressure-detecting device according to claim 1 is characterized in that: a pressure relief vent is arranged on the cover plate of housing, a rubber plug is arranged in the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920071374U CN201382840Y (en) | 2009-04-30 | 2009-04-30 | Pressure detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920071374U CN201382840Y (en) | 2009-04-30 | 2009-04-30 | Pressure detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201382840Y true CN201382840Y (en) | 2010-01-13 |
Family
ID=41526312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920071374U Expired - Fee Related CN201382840Y (en) | 2009-04-30 | 2009-04-30 | Pressure detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201382840Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398819A (en) * | 2013-08-26 | 2013-11-20 | 昆山市兴利车辆科技配套有限公司 | Novel vehicle vacuum pressure sensor |
| CN105509954A (en) * | 2015-11-26 | 2016-04-20 | 宁波新思创机电科技股份有限公司 | Vacuum pressure sensor |
-
2009
- 2009-04-30 CN CN200920071374U patent/CN201382840Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398819A (en) * | 2013-08-26 | 2013-11-20 | 昆山市兴利车辆科技配套有限公司 | Novel vehicle vacuum pressure sensor |
| CN105509954A (en) * | 2015-11-26 | 2016-04-20 | 宁波新思创机电科技股份有限公司 | Vacuum pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Song Lingqing Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20150430 |
|
| EXPY | Termination of patent right or utility model |